How long after cache update to see effect in SERP?

[gouri]

Suppose I made a change to a title tag and the change is now appearing in the latest version of the Google cache page for that page.

How long does it take to see an affect in the SERP when searching for a keyword that the page ranks for?

I am not sure how long that would take.

[tedster]

The cache quite often lags behind the SERPs rankings, gouri. Odds are, the changes on your new version of the page is already being calculated into Google's rankings by the time the cache page is refreshed.

[edited by: tedster at 1:59 am (utc) on Nov. 3, 2008]

[gouri]

I see. In this case, I have not seen any changes in the SERPs from before the cache update and after.

Is it possible that the changes might take affect after the cache date has been updated?